Wikipedia
The Cybiko is a Russian handheld computer introduced in the U.S. by David Yang's company Cybiko Inc. as a retail test market in New York on April 2000, and rolled out nationwide on May 2000. It is designed for teens, featuring its own two-way radio text messaging system. It had over 430 "official" freeware games and applications. Because of the text messaging system, it features a QWERTY keyboard that was used with a stylus. An MP3 player add-on was made for the unit as well as a SmartMedia card reader. The company stopped manufacturing the units after two product versions and only a few years on the market. Cybikos can communicate with each other up to a maximum range of 300 metres (0.19 miles). Several Cybikos can chat with each other in a wireless chatroom. By the end of 2000, the Cybiko Classic sold over 500,000 units.